[Bug 90461] [SKL Regression]boot system causes WARNING: CPU: 0 PID: 24 at drivers/gpu/drm/i915/intel_csr.c:409 assert_csr_loaded+0x27/0xb7 [i915]()

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=90461

Humberto Israel Perez Rodriguez <humberto.i.perez.rodriguez at intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|---                         |FIXED

--- Comment #6 from Humberto Israel Perez Rodriguez <humberto.i.perez.rodriguez at intel.com> ---
(In reply to cprigent from comment #5)
> Go back to me as Hua is no more working on the project.

Looks like that in the latest drm-intel-nighly kernel this bug is fixed.
i did the next step in order to verify this bug since the reproduce steps they
do not say much.

1-remove dmesg log #rm /var/log/kern.log and reboot the system
2-once the system is boot up check the dmesg

I also must comment that i the dmesg has the following parameter in the grub in
order the get more information regarging i915 driver, please check
dmesg_skl.log for more information

initcall_debug 
drm.debug=0xe

This is part of dmesg_skl.log :
--------------------------------

[    2.716312] calling  i915_init+0x0/0x9b [i915] @ 351
[    2.725956] [drm:i915_dump_device_info] i915 device info: gen=9,
pciid=0x191e rev=0x07
flags=need_gfx_hws,is_skylake,has_fbc,has_hotplug,has_llc,has_ddi,has_fpga_dbg,
[    2.726255] [drm:intel_csr_ucode_init] Loading i915/skl_dmc_ver1.bin
[    2.726447] [drm:i915_gem_gtt_init] GMADR size = 256M
[    2.726448] [drm:i915_gem_gtt_init] GTT stolen size = 32M
[    2.726449] [drm:i915_gem_gtt_init] ppgtt mode: 3
[    2.727433] [drm:finish_csr_load] Finished loading i915/skl_dmc_ver1.bin
[    2.741679] [drm:i915_gem_init_stolen] Memory reserved for graphics device:
32768K, usable: 31744K
[    2.794868] [drm:i915_gem_setup_global_gtt] clearing unused GTT space: [0,
fffff000]
[    2.796915] [drm:i915_gem_context_init] LR context support initialized
[    2.853777] [drm] Initialized i915 1.6.0 20151023 for 0000:00:02.0 on minor
0
[    2.853871] initcall i915_init+0x0/0x9b [i915] returned 0 after 134319 usecs
[    2.897032] snd_hda_intel 0000:00:1f.3: bound 0000:00:02.0 (ops
i915_audio_component_bind_ops [i915])
[    2.913122] i915 0000:00:02.0: fb0: inteldrmfb frame buffer device
[    3.173480] [drm:i915_gem_open]
[    3.173625] [drm:i915_gem_open]
[    7.784872] [drm:i915_gem_open]
[    7.785121] [drm:i915_gem_open]
[    7.785192] [drm:i915_gem_open]



attaching as well the configuration used and kernel as well:

Software configuration :
--------------------------------
Ubuntu 14.04.03 x86_64
Xserver : 1.17.4  (commit : 2c7fa2a)
libdrm : 2.4.65 (commit :c349616)
Xf86-video-intel : 2.99.917 (commit : baec802)
Mesa : 11.0.4 (commit : 31bf247)
Libva : 1.6.1 (commit : 613eb96)
Intel-driver : 1.6.1 (commit : 35858c6)
Cairo : 1.14.4 (commit : 0317ee7)


 --- Hardware information ---
CPU information    : Intel(R) Core(TM) m5-6Y57 CPU @ 1.10GHz
GPU Card   : Intel Corporation Device 191e (rev 07) (prog-if 00 [VGA
controller])
Bios  : 102.0
KSC   : 1.15
Memory ram : 4 GB

Kernel : latest drm-intel-nightly: 2015y-11m-06d-12h-48m-02s UTC integration
manifest
commit a3b0dec82fdb59c629c4fb9847245b80b0cf69dd
Author: Jani Nikula <jani.nikula at intel.com>
Date:   Fri Nov 6 14:48:23 2015 +0200


I will proceed to close this bug

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